Mechanical toy.



PATENTBD AUG. 25; 1903;

R. CAIRNS.

MECHANICAL TOY.

APPLICATION FILED MAY 26, 1903.

10 MODEL.

I v p UNITED STATES- Patented August 25, 1903.

ROBERT CAIRNS, OF TORONTO, OANADA.

. MEOHA CAL TOY'.

SPECIFICATION forming part of Letters Patent No. 737,337, dated u ust 25, 1903.

Application filed Ma 26,190 serial No. 153,390. '(No model.)

To all whom it may concern:

Be it known that 1, ROBERT OAIRNs, of'th city of Toronto, in the county of York, in the Province of Ontario, Canada, have invented certain new and useful Improvements in-Mechanical Toys, of which the following is a specification.

My invention relates to improvements in mechanical toys; and the object of the invention outwardly and having at the end thereof a compression-bulb, a piston located within the cylinder and having the stem or rod thereof extending outwardly and operatively connected to the parts designed to be moved, i and a spring located within the cylinder be tween the piston and the head thereof, the

parts being constructed and arranged in de l tail, as hereinafter explained.

Figure 1 is a plan view showingthe application of my invention to'a butterfly. 2 is a sectional plan. Fig. 3 is a cross-section. Fig. 4: is an enlarged detail showing the operative connection of the stemof the piston to the wings. v

In the drawings like letters of reference indicate corresponding parts in each figure.

In the drawings I have shown my invention attached to a mechanical butterfly but it will be readily understood that it may be applied with equal facility to mechanical and other toys. I have merely shown it as applied to a butterfly to show one of the most useful toys to which it may be applied.

A is the body of the butterfly, andBTare. the wings, which are provided at the inner. edge with bent crank-shaped ends I) and b, I

which extend through loops or journals a a, respectively, stamped or formed up ,out of the body portion.

C is a cylinder suitably held within the body A and having connectedthereto a flexible tube 0, which extends to an operating compression-bulb C.

Fig.

D is the piston, which provided with a stemd, which extends through the opposite end of the piston to that from which the tube 0 extends. This end of the piston is provided with holes 0. The end of the stem dis bent at d, as indicated.

E is a spiral spring extending between the end of the cylinder and the piston D.

F are bars slotted at the end and suitably held over the bent end (1 of thestem dof the piston. The opposite endsof the bars F are connected by links f to the crank-shaped endsb.

Having now described theprinoipal parts involved in my invention, I shall briefly/de= scribe its operation and utility. By pressing on the bulb the air is forced against the pis ton D, and necessarily the piston is caused to move. longitudinally in the cy linder, thereby carrying with it the rod (1, and consequently the bars F F, thus serving to pull upon the cranks b of the wings, thus throwing such {wings upwardly. The spring E at the limit ofithe stroke serves to bring the piston back again to the normal position and necessarily at the same time throws the wings back flat. The bulb is intended to be inserted in the pocket, and the butterfly may be fastened to the lapel of the coat of any person, and it will thus be seen that the motion of the butterfly may be very accurately represented body, a piston in'said cylinder, a rod or stem carried by said piston, a pair of toggle-links connecting said stem with the cranks of the .oppositelydisposed wings and an aircompressing device connected with said cylinder, substantially as described.

, ROBERT. -;OAIRNS.

Witnesses M. MCLAREN, H.,.STRIOKLAND. 

